大约有 45,000 项符合查询结果（耗时：0.0502秒） [XML]
How to find Unused Amazon EC2 Security groups
...
Note: this only considers security use in EC2, not other services like RDS. You'll need to do more work to include security groups used outside EC2. The good thing is you can't easily (might not even be possible) to delete active security groups if you miss one asso...
How can I find the number of arguments of a Python function?
...eters.
params = sig.parameters
print(params['kwarg1']) # prints: kwarg1=20
Additionally, you can call len on sig.parameters to also see the number of arguments this function requires:
print(len(params)) # 3
Each entry in the params mapping is actually a Parameter object that has further att...
How to do a batch insert in MySQL
...nd separated by commas.
Example:
INSERT INTO tbl_name (a,b,c) VALUES(1,2,3),(4,5,6),(7,8,9);
share
|
improve this answer
|
follow
|
...
How to take screenshot of a div with JavaScript?
...
102
No, I don't know of a way to 'screenshot' an element, but what you could do, is draw the quiz re...
How to search by key=>value in a multidimensional array in PHP
...
220
Code:
function search($array, $key, $value)
{
$results = array();
if (is_array($arra...
Left Align Cells in UICollectionView
... |
edited May 5 at 22:24
Tristan Newman
21911 gold badge44 silver badges1212 bronze badges
answer...
No Multiline Lambda in Python: Why not?
...k at the following:
map(multilambda x:
y=x+1
return y
, [1,2,3])
Is this a lambda returning (y, [1,2,3]) (thus map only gets one parameter, resulting in an error)? Or does it return y? Or is it a syntax error, because the comma on the new line is misplaced? How would Python know wh...
Updating MySQL primary key
...
235
Next time, use a single "alter table" statement to update the primary key.
alter table xx dro...
How to concatenate text from multiple rows into a single text string in SQL server?
...
1
2
Next
1467
...